I do a lot of SEO/SEM and have some concerns. As a user, I LOATHE google instant. It took 5 tries to get my 100 results/page back, and every time I clear my cookies I have to start over. Questions about PPC impact:
1. If I bid on the phrase 'antique doorknobs' and someone starts typing in 'antique hair styles', maybe my ad shows up for a second before they're done typing. If my ad's 2 second display counts as an impression, my clickthrough rate could suffer and therefore my quality score and my bids would be forced up. Not to mention it's just more junk data messing up the real numbers.
2. Can advertisers opt out of this program? I only want my ads to display AFTER the user has typed in what they want.
3. Google does a number of things that have the effect of driving people to use more popular versions of keywords - fighting the long tail. Google suggest will 'helpfully' auto-complete your search queries with the most popular version. Sometimes this will help the user. Most of the time, users will be driven to use the most popular, most competitive, and costliest keywords possible. This drives up ad revenue and incites more competition for the most expensive keywords - a definite money maker for Google.
I tried several boxes before settling for the popcorn hour. the WD HD live was a complete piece of crap. It was tiny, the firmware updates didn't work, and I spent many hours beating my head against a wall trying to get homebrew or any other firmware to actually work on it. And I soldered my own chip into my xbox to run xbox media center long ago, so I know what I'm doing.
Computer programmers do it byte by byte.